package com.zjw.crawler;

import us.codecraft.webmagic.Page;
import us.codecraft.webmagic.Site;
import us.codecraft.webmagic.Spider;
import us.codecraft.webmagic.pipeline.ConsolePipeline;
import us.codecraft.webmagic.processor.PageProcessor;

public class JingDongProcesser implements PageProcessor {

    private Site site = Site.me().setRetryTimes(3).setSleepTime(100);

    @Override
    public void process(Page page) {
        page.addTargetRequests(page.getHtml().links().regex("(https://item\\.jd\\.com/\\w*.html)").all());
        page.putField("author", page.getUrl().regex("https://jd\\.com/(\\w+)/.*").toString());
        page.putField("name", page.getHtml().xpath("//h1[@class='entry-title public']/strong/a/text()").toString());
        if (page.getResultItems().get("name") == null) {
            //skip this page
            page.setSkip(true);
        }
        page.putField("readme", page.getHtml().xpath("//div[@id='readme']/tidyText()"));
    }

    @Override
    public Site getSite() {
        return site;

    }

    public static void main(String[] args) {
        Spider.create(new JingDongProcesser()).addUrl("https://search.jd.com/Search?keyword=%E6%89%8B%E6%9C%BA&enc=utf-8")
                .addPipeline(new ConsolePipeline()).thread(5).run();
    }
}